Mine-car stop.



G. W. JENKINS & B. LOWRY.

MINE GAR STOP.

APPLICATION FILED JUNE 26, 1011.

Patented 001.3, 1911.

2 SHEETS-SHEET 1.

IOOI I I J v I Witnesses j lnventbrJ 1 b AZ"- y Attorneys G. W. JENKINS& E. LOWRY. MINE OAR STOP.

APPLICATION FILED JUNE 28, 1911. 1,004,652. Patented 061. 3,1911.

2 SHEETS-SHEET 2.

W l nventora 1 1/ Witnesses Attorneys GEORGE W. JENKINS AND EDWARDLOWRY, 0F NELSONVILLE, OHIO.

MINE-CAR STOP.

' To all whom 'it may concern:

Be it known that we, GEORGE WV. J ENKINS and EDWARD LOWRY, citizens ofthe United States, residing at Nelsonville, in the county of Athens,State of Ohio, have invented a new and useful Mine-Car Stop, of whichthe following is a specification.

This invention relates to improvements in mine car stops, and theprimary object of this invention is the provision of a means adapted tobe journaled parallel to the rails of the track at the lower end of anelevator shaft, and so mounted as to provide an automatic stop toprevent a car after the elevator has left operable position withrelation to the rail so that a car may not be precipitated into theelevator pit.

A further object of the invention is the provision of two paralleldisposed rock shafts, provided with car wheel engaging abutments adaptedto be normally held in parallel and at right angles to the rails so asto engage the wheels of the car and preventit from moving toward thepit, combined with means which are adapted to be actuated by engagementwith the elevator to operate the rock shafts and extend the abutment topermit free access of the car to the elevator.

WVith the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of invention herein disclosed can be made within the scope ofwhat is claimed without departing from the spirit of the invention.

I In the drawings-Figure 1 is a top plan view of a portion of a trackadjacent the elevator, with the elevator being in the position toreceive a car. Fig. 2 is a side elevation of a car in arrested position,an ele- .vator and pit being shown in section and in the position justprior to releasing the car arresting device, dotted lines showing theposition the parts assume when the car is free to passage upon theelevator. Fig. 3 is a sectional View taken through the main rails of thetrack showing the car arresting arms in car arresting position.

Referring to the drawings, the numeral 1 designates the pit, and 2 theoppositely disposed elevator guides, between which are slidably mountedthe car carrying elevator Specification of Letters Patent.

Application filed June 26, 1911.

Patented Oct. 3, 1911.

Serial No. 635,271.

8, provided with the parallel rail sections 4. 'Disposed upon theforward edge of the elevator platform 3 and outside of the rails l, arethe two lugs 5, the purpose of which will presently appear. The maintrack rails 6, are provided with apertures 7 in their webs asclearlyindicated in Fig. 3 of the drawings, and are so disposed as to co-actwith the rails 1 of the elevator, to aline when the elevator is in theposition as shown in Fig. 1 and in dotted lines Fig. 2. Disposed uponthe guides exterior of the rail sections 6 and adjacent the pit, are thetwo pairs of journal blocks 8 and 9 respectively, which. have mountedtherein the rock shafts 10 whose forward ends 11 are bent at rightangles and disposed above and within the pit 1 and in line for operablecontact with the lugs 5 of the elevator, the said lugs 5 being disposedto engage the said right angled arms 11 to cause the rock shafts 10 tomove in unison from the position as shown in Fig. 3 of the drawings tothe position as shown in Fig. 1. Secured to and movable with the rockshaft near the journal 9 is a sleeve 12, which is provided with thedouble right angled portions 13 and 1 1 and with the car arresting andengaging arms 15, an eye 16 through the link 17 connecting each one ofthese car arresting and abutting members to the coiled spring 18, whichis disposed between the rails as clearly shown in Figs. 1 and 3 andnormally holds the car arresting arms in the position as indicated inFig. 2 of the drawings. It will thus be seen that as the elevator isdescending and is about to assume the position as shown in Fig. 2 of thedrawings,that the lugs 5 as the car continues its descension, willengage the respective arms 11 of the rock shaft 10, and as the elevatorassumes the position as shown in dotted lines in Fig. 2, the arrestingarms 15 will be moved from the position as shown in Figs. 2 and 3 to theposition as shown in Fig. 1, and permit free access of the car A to therails 4; upon the elevator platform 3.

It will'be noted in Figs. 1 and 2 of the drawings, that thearrestingarms 15 are provided with the curved car engaging portions aand that by means of their mounting upon the rock shaft 10 between thejournals 8 and 9 respectively, they are properly braced so as to preventthe passage of the car into the pit 1 should the elevator not be inreceiving position. It will also be noted that by means of the spring18, that both ofthe respective arresting arms 15 will be normally heldin the position as shown in Figs. 2 and 3 of the drawings when theelevator is depressing the right angled arms 11 and'holding the said.arresting arms 15 in the position as shown in Fig. 1, but that as soonas the elevator ascends or disengages the lugs 5 from the right angledarms 11, that the spring 18 will cause the simultaneous movement of thearresting arms 15 toward each other and cause them to assume the railengaging position and car arresting position as clearly shown in Fig. 3of the drawings.

WVhat is claimed is:

1. The combination with an elevator pit, an elevator, and a section ofrails terminating at said pit, of a car holding and arresting device,comprising two pairs of journals mounted upon the outside of each ofsaid rails, a rock shaft journaled in each pair of journals, and havingtheir inner ends projecting into the pit, a right angled arm carried bysaid inner end, a pair of lugs carried by the elevator and adapted toengage said right angled arms of the rock shaft, a spring for operatingthe rock shafts against the action of the elevator, and a pair of cararresting arms carried by the rock shafts and adapted to be normallyheld in the path of travel to arrest the car on said rail section;

The combination with an elevator pit, and an elevator, of a cararresting device,

comprising a pair of oppositely disposed spring actuated arms mountedadjacent to the rails and held normally in the path of travel of thecar, said arms being provided with right angled ends projecting into thepit, and means carried by the elevator engaging said right angled armsfor operating and releasing the car arresting devices.

3. The combination with an elevator pit, an elevator, and rail sectionsterminating at the pit, of a car arrest-ing device, comprising two rockshafts journaled in parallel and upon the outside of each rail section,a pair of arms carried by said rock shafts, each arm being provided witha rail engaging angled portion and adapted when resting upon the rail tobe at right angles to the tread thereof, a spring for actuating botharms and rock shafts simultaneously to hold the arms in rail engagingposition, a pair of lugs carried by the elevator and projecting towardthe rail sections, and a right angled arm carried by each rock shaft andprojecting into the pit and in the of the elevator.

In testimony that we claim the foregoing as our own, we have heretoaffixed our signatures in the presence of two witnesses.

GEO. W. JENKINS. EDWARD ,LOVVRY.

path of said lugs Witnesses:

FRANK J. PENDERGRASS, SAM LENNIGAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). C.

